CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $) In Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2010	Mar. 31, 2010	Jun. 30, 2011		Jun. 30, 2010
Change in accumulated other comprehensive income (loss)
Balance, at the beginning of period		$ (16,277)			$ (16,277)
Balance, at the end of period	(12,222)				(12,222)
Reclassification adjustment for net gains included in net income, net of taxes					(414)		89
Net unrealized gains (losses) on investment securities
Change in accumulated other comprehensive income (loss)
Balance, at the beginning of period	(1,655)	(2,395)	(3,165)	(4,347)	(2,395)		(4,347)
Change in net unrealized gains (losses) on investment securities, net of taxes	1,052	740	906	1,182
Change	1,052	740	906	1,182
Balance, at the end of period	(603)	(1,655)	(2,259)	(3,165)	(603)		(2,259)
Foreign currency translation adjustment, net of hedges
Change in accumulated other comprehensive income (loss)
Balance, at the beginning of period	(5,763)	(7,127)	(8,226)	(7,947)	(7,127)		(7,947)
Foreign currency translation adjustment, net of taxes	776	1,364	(2,036)	(279)
Change	776	1,364	(2,036)	(279)
Balance, at the end of period	(4,987)	(5,763)	(10,262)	(8,226)	(4,987)		(10,262)
Cash flow hedges
Change in accumulated other comprehensive income (loss)
Balance, at the beginning of period	(2,498)	(2,650)	(2,959)	(3,182)	(2,650)		(3,182)
Cash flow hedges, net of taxes	(69)	152	(225)	223
Change	(69)	152	(225)	223
Balance, at the end of period	(2,567)	(2,498)	(3,184)	(2,959)	(2,567)		(3,184)
Pension liability adjustments
Change in accumulated other comprehensive income (loss)
Balance, at the beginning of period	(4,068)	(4,105)	(3,509)	(3,461)	(4,105)		(3,461)
Pension liability adjustment, net of taxes	3	37	44	(48)
Change	3	37	44	(48)
Balance, at the end of period	(4,065)	(4,068)	(3,465)	(3,509)	(4,065)		(3,465)
Accumulated other comprehensive income (loss)
Change in accumulated other comprehensive income (loss)
Balance, at the beginning of period	(13,984)	(16,277)	(17,859)	(18,937)	(16,277)		(18,937)
Change in net unrealized gains (losses) on investment securities, net of taxes	1,052	740	906	1,182
Foreign currency translation adjustment, net of taxes	776	1,364	(2,036)	(279)	2,140		(2,315)
Cash flow hedges, net of taxes	(69)	152	(225)	223	83		(2)
Pension liability adjustment, net of taxes	3	37	44	(48)	40	[1]	(4)	[1]
Change	1,762	2,293	(1,311)	1,078	4,055		(233)
Balance, at the end of period	$ (12,222)	$ (13,984)	$ (19,170)	$ (17,859)	$ (12,222)		$ (19,170)

[1] Reflects adjustments to the funded status of pension and postretirement plans, which is the difference between the fair value of the plan assets and the projected benefit obligation. See Note 8 to the Consolidated Financial Statements.